1/*
2 * Copyright (C) 1999 Yasuhiro Ohara
3 *
4 * This file is part of GNU Zebra.
5 *
6 * GNU Zebra is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2, or (at your option) any
9 * later version.
10 *
11 * GNU Zebra is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with GNU Zebra; see the file COPYING.  If not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 02111-1307, USA.
20 */
21
22#ifndef OSPF6_ROUTE_H
23#define OSPF6_ROUTE_H
24
25#include "ospf6_hook.h"
26#include "ospf6_linklist.h"
27
28struct ospf6_route_table
29{
30  char name[128];
31
32  int freeze;
33
34  /* radix tree */
35  struct route_table *table;
36
37  /* list of hooks */
38  struct linklist *hook_list[3];
39  void (*hook_add) (void *);
40  void (*hook_change) (void *);
41  void (*hook_remove) (void *);
42
43  u_int32_t route_id;
44};
45
46
47
48struct ospf6_route
49{
50  /* Destination ID */
51  struct prefix prefix;
52
53  /* Destination Type */
54  u_char type;
55};
56
57/* Path */
58struct ls_origin
59{
60  u_int16_t type;
61  u_int32_t id;
62  u_int32_t adv_router;
63};
64
65struct ospf6_path
66{
67  /* Link State Origin */
68  struct ls_origin origin;
69
70  /* Router bits */
71  u_char router_bits;
72
73  /* Optional Capabilities */
74  u_char capability[3];
75
76  /* Prefix Options */
77  u_char prefix_options;
78
79  /* Associated Area */
80  u_int32_t area_id;
81
82  /* Path-type */
83  u_char type;
84
85  /* Cost */
86  u_int8_t metric_type;
87  u_int32_t cost;
88  u_int32_t cost_e2;
89};
90
91/* Nexthop */
92struct ospf6_nexthop
93{
94  /* Interface index */
95  unsigned int ifindex;
96
97  /* IP address, if any */
98  struct in6_addr address;
99};
100
101struct ospf6_route_node
102{
103  struct ospf6_route_table *table;
104  int count;
105  u_int32_t route_id;
106
107  struct route_node  *route_node;
108  struct ospf6_route  route;
109  struct linklist    *path_list;
110};
111
112struct ospf6_path_node
113{
114  struct ospf6_route_node *route_node;
115  struct ospf6_path        path;
116  struct linklist         *nexthop_list;
117};
118
119struct ospf6_nexthop_node
120{
121  int            flag;
122  struct timeval installed;
123
124  struct ospf6_path_node *path_node;
125  struct ospf6_nexthop    nexthop;
126};
127
128struct ospf6_route_req
129{
130  struct ospf6_route_table *table;
131  struct route_node    *route_node;
132  struct linklist_node  path_lnode;
133  struct linklist_node  nexthop_lnode;
134  u_int32_t route_id;
135
136  int count;
137  struct ospf6_route   route;
138  struct ospf6_path    path;
139  struct ospf6_nexthop nexthop;
140};
141
142#define OSPF6_DEST_TYPE_NONE       0
143#define OSPF6_DEST_TYPE_ROUTER     1
144#define OSPF6_DEST_TYPE_NETWORK    2
145#define OSPF6_DEST_TYPE_DISCARD    3
146#define OSPF6_DEST_TYPE_MAX        4
147
148#define OSPF6_PATH_TYPE_NONE       0
149#define OSPF6_PATH_TYPE_INTRA      1
150#define OSPF6_PATH_TYPE_INTER      2
151#define OSPF6_PATH_TYPE_EXTERNAL1  3
152#define OSPF6_PATH_TYPE_EXTERNAL2  4
153#define OSPF6_PATH_TYPE_ZOFFSET    5
154#define OSPF6_PATH_TYPE_ZSYSTEM  (OSPF6_PATH_TYPE_ZOFFSET + ZEBRA_ROUTE_SYSTEM)
155#define OSPF6_PATH_TYPE_ZKERNEL  (OSPF6_PATH_TYPE_ZOFFSET + ZEBRA_ROUTE_KERNEL)
156#define OSPF6_PATH_TYPE_ZCONNECT (OSPF6_PATH_TYPE_ZOFFSET + ZEBRA_ROUTE_CONNECT)
157#define OSPF6_PATH_TYPE_ZSTATIC  (OSPF6_PATH_TYPE_ZOFFSET + ZEBRA_ROUTE_STATIC)
158#define OSPF6_PATH_TYPE_ZRIP     (OSPF6_PATH_TYPE_ZOFFSET + ZEBRA_ROUTE_RIP)
159#define OSPF6_PATH_TYPE_ZRIPNG   (OSPF6_PATH_TYPE_ZOFFSET + ZEBRA_ROUTE_RIPNG)
160#define OSPF6_PATH_TYPE_ZOSPF    (OSPF6_PATH_TYPE_ZOFFSET + ZEBRA_ROUTE_OSPF)
161#define OSPF6_PATH_TYPE_ZOSPF6   (OSPF6_PATH_TYPE_ZOFFSET + ZEBRA_ROUTE_OSPF6)
162#define OSPF6_PATH_TYPE_ZBGP     (OSPF6_PATH_TYPE_ZOFFSET + ZEBRA_ROUTE_BGP)
163#define OSPF6_PATH_TYPE_MAX      (OSPF6_PATH_TYPE_ZOFFSET + ZEBRA_ROUTE_MAX)
164
165#define OSPF6_ROUTE_FLAG_ROUTE_CHANGE      0x01
166#define OSPF6_ROUTE_FLAG_PATH_CHANGE       0x02
167#define OSPF6_ROUTE_FLAG_ADD               0x04
168#define OSPF6_ROUTE_FLAG_REMOVE            0x08
169#define OSPF6_ROUTE_FLAG_CHANGE            0x10
170
171int ospf6_route_lookup (struct ospf6_route_req *request,
172                        struct prefix *prefix,
173                        struct ospf6_route_table *table);
174void ospf6_route_head  (struct ospf6_route_req *request,
175                        struct ospf6_route_table *table);
176int  ospf6_route_end   (struct ospf6_route_req *request);
177void ospf6_route_next  (struct ospf6_route_req *request);
178
179void ospf6_route_add (struct ospf6_route_req *, struct ospf6_route_table *);
180void ospf6_route_remove (struct ospf6_route_req *, struct ospf6_route_table *);
181void ospf6_route_remove_all (struct ospf6_route_table *);
182
183struct ospf6_route_table *ospf6_route_table_create ();
184void ospf6_route_table_delete (struct ospf6_route_table *);
185
186void ospf6_route_table_freeze (struct ospf6_route_table *);
187void ospf6_route_table_thaw (struct ospf6_route_table *);
188
189void
190ospf6_route_hook_register (void (*add)    (struct ospf6_route_req *),
191                           void (*change) (struct ospf6_route_req *),
192                           void (*remove) (struct ospf6_route_req *),
193                           struct ospf6_route_table *table);
194void
195ospf6_route_hook_unregister (void (*add)    (struct ospf6_route_req *),
196                             void (*change) (struct ospf6_route_req *),
197                             void (*remove) (struct ospf6_route_req *),
198                             struct ospf6_route_table *table);
199
200void ospf6_route_init ();
201
202int ospf6_route_table_show (struct vty *, int, char **,
203                            struct ospf6_route_table *);
204
205#endif /* OSPF6_ROUTE_H */
206
207